150 Years of Racism: Attitudes in the American South

A new paper by Avidit Acharya, Matthew Blackwell, and Maya Sen has discovered that the proportion of enslaved residents in 1860 — 153 years ago — predicts race-related beliefs today.

As the percent of the population in a county accounted for by the enslaved increases, there is a decreased likelihood that contemporary white residents will identify as a Democrat and support affirmative action, and an increased chance that they will express negative beliefs about black people.